Base for stucco, plaster, and the like



Sept. 4, 1923.

A. PACKARD PLA sTER, AND THE LIKE BASE FOR STUGCO Filed May 29. 1922 ?a.tented Sept. i923.

ALMENZER PACKARD, OF HOLGATE, OHIO, ASSIGNOB TO CLARENCE;E; RICHHOLT AND CHARLES RICHHOLT, OF BROS.

HQLGATE, orrro, DOING, Business As RIGHHOLT I BASE FOB srucoo, PLASTER, snarl-IE Like.

Ap1ilicati0n filed lflay 29, 1922. Serial No. 564,392.

To all to ham it may concern:

Be it known that I, ALMENZER PTXCKARI'), a citizen of the United States, and a resldent of Holgate, in the county of Henry and State of Ohio, have made an invention ap-.

able others skilled in the art to which it ap pertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification. y

My invention has for its object to provide a stucco or plaster base for exterior or interior wall surface-s that may be made exceedingly thin and consequently light 111 weight, and, moreover, may be formed of material that is light in weight and but slightly moisture absorbent, whereby build: ings may be formed that are weather proof from a material that is of light weight, of lowcost and exceedingly durable. It, moreover, has for its object to] provide a base for plaster or stucco that will expand or contract but little because of changes in thermal conditions and will not expand or contract by reason of moisture.

My invention may be contained in articles that in their details of construction may be varied in form. To illustrate a practical application of the invention I have selected a slab of burnt or fired argillaceous material which may be made thin and consequently light in weight. The slab is illustrated 1n the accompanying drawings.

Figure 1 of the drawings illustrates a front View of the slab. Fig. 2 illustrates a rear view of the slab. Fig. 3 illustrates a front broken View of a structure in-connection with which a plurality of slabs are used in building the structure. Fig. l is a sectional view of a part of the structure illustrated in Fig. 3.

In the figures, 1 is the slab which is formed of argillaceous material, preferably of slate clay. The slab is first formed and then fired so as to convert it to brick material. It being formed of ola it is comparatively light in weight, and moreover.

may be formed exceedingly thin, which reduces the weight of the slab as a whole. \Vhen formed of a slate it may be made thinner than When'formed of ordinary clay,

and moreover isless liableto fracture in shipping and placing the slabs in position.

The. slab 1' is provided with'a plurality of longitudinal corrugationsformed by channels 2 and ridges 3; "The channels and ridges constitute a means for keying plaster or stucco or similar material used for 'surfacing the slabs.

cated in the-raised portions or ridges of the slabs. The holes 4 provide openings through which nails may be inserted and driven to I The slabs also are provided with. holes 4: that are preferably 10- slab may besecu'red solid to the supporting structure notwithstanding any -slight warping or irregularities in the rear surface of the slab, or irregularities in the surface-of the material to which the slabsare n'ailed. The raised portions are crowded against the Surface and if a nail is driven too close the material forming the raised portions will be broken down, or if the slab is slightly warped or the surface of the structure cov-.

ered by one part of the slab is slightly raised.

the material of the raised portion around the opening will likewise be broken down or will slightly penetrate the material of the wall, or if there is a slightly raised portion of the slab or a slight depression of the porare placed at a short distance apart in the manner 'well known in brick-laying, and the placedin position on the building their edges l bevelled edges form a key for the mortar that may be placed between. the edges of the slabs or for the plaster or stucco the may be used to cover the Slabs. i

portions 5 are broken down so as tosecurethe slab at practically all points against the sheeting or against the paper. 7

If desired, mortar may be inserted in the spaces 12 between the slabs. It the building is not covered with stucco it will have the exterior appearance of one that is formed of brick tiling. If desired, the mortar between the edges of the slabs may be omitted and the slabs maybe covered with stucco if they are placed on theexterior of the building. or with plaster if placed on the interior of the building. The stucco will be keyed tothe slabs by the ridges and recesses formed at the surface of the slabs, and also bythe channels formed between. the slabs. The slabs thus form abase for the plaster or stucco which will not warp by reason of moisture, or by reason of changes in. temperature conditions. Expansion or contraction will be substantially the same as that 01% the stucco, and consequently the cracks in the stucco will be obviated. The life of the stucco will be greatly extended while stucco placed on wooden laths or on iron laths will crack and break off in a short time, which produces an vunsightly appearance and which requires the tearing off of the stucco or the like and replacement thereof either in part orin its. entirety. Fur? thermore, theslabsI being .formed of ,clay and particularly of slate clay enables. the production of an exceedingly thin slab which will adhere to the stucco or plaster material and consequently an exceedingly durable building 18 produced of a comparatively light weight material and at a very low cost.

I claim: 1. In a slab formed of a calcined argil- 'la-ceous material and having channels and ridges and bevelled rear edges for keying stucco, plaster and the liketo the slab, and

having nail holes formed therein for secur-' ing the slab to a structure, and raised portions surrounding the nail holes on the side '4 of the slabs opposite to the side having the channels and ridges.

2. In a slab formed of'a calcined slate ALMENZER PACKARD; 

